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SubjectRE: [PATCH net-next 3/3] net: stmmac: Introducing support for Page Pool
Date
From: Jose Abreu <joabreu@synopsys.com>
Date: Jul/22/2019, 10:47:44 (UTC+00:00)

> From: Jon Hunter <jonathanh@nvidia.com>
> Date: Jul/22/2019, 10:37:18 (UTC+00:00)
>
> >
> > On 22/07/2019 08:23, Jose Abreu wrote:
> > > From: Jon Hunter <jonathanh@nvidia.com>
> > > Date: Jul/19/2019, 14:35:52 (UTC+00:00)
> > >
> > >>
> > >> On 19/07/2019 13:32, Jose Abreu wrote:
> > >>> From: Jon Hunter <jonathanh@nvidia.com>
> > >>> Date: Jul/19/2019, 13:30:10 (UTC+00:00)
> > >>>
> > >>>> I booted the board without using NFS and then started used dhclient to
> > >>>> bring up the network interface and it appears to be working fine. I can
> > >>>> even mount the NFS share fine. So it does appear to be particular to
> > >>>> using NFS to mount the rootfs.
> > >>>
> > >>> Damn. Can you send me your .config ?
> > >>
> > >> Yes no problem. Attached.
> > >
> > > Can you compile your image without modules (i.e. all built-in) and let
> > > me know if the error still happens ?
> >
> > I simply removed the /lib/modules directory from the NFS share and
> > verified that I still see the same issue. So it is not loading the
> > modules that is a problem.
>
> Well, I meant that loading modules can be an issue but that's not the
> way to verify that.
>
> You need to have all modules built-in so that it proves that no module
> will try to be loaded.
>
> Anyway, this is probably not the cause as you wouldn't even be able to
> compile kernel if you need a symbol from a module with stmmac built-in.
> Kconfig would complain about that.
>
> The other cause could be data corruption in the RX path. Are you able to
> send me packet dump by running wireshark either in the transmitter side
> (i.e. NFS server), or using some kind of switch ?
>
> ---
> Thanks,
> Jose Miguel Abreu

Also, please add attached patch. You'll get a compiler warning, just
disregard it.

---
Thanks,
Jose Miguel Abreu
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